diff options
| -rw-r--r-- | fs/erofs/zmap.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c index 98eff1259de4..0150570c33aa 100644 --- a/fs/erofs/zmap.c +++ b/fs/erofs/zmap.c @@ -698,6 +698,11 @@ static int z_erofs_do_map_blocks(struct inode *inode, } if (m.headtype == Z_EROFS_VLE_CLUSTER_TYPE_PLAIN) { + if (map->m_llen > map->m_plen) { + DBG_BUGON(1); + err = -EFSCORRUPTED; + goto unmap_out; + } if (vi->z_advise & Z_EROFS_ADVISE_INTERLACED_PCLUSTER) map->m_algorithmformat = Z_EROFS_COMPRESSION_INTERLACED; |